Fabrication of Spray-Dried Microcapsules Containing Noni Juice Using Blends of Maltodextrin and Gum Acacia: Physicochemical Properties of Powders and Bioaccessibility of Bioactives during In Vitro Digestion
文献类型： 外文期刊
作者： Zhang, Chuang 1 ; Khoo, Siew Lin Ada 1 ; Swedlund, Peter 1 ; Ogawa, Yukiharu 2 ; Shan, Yang 3 ; Quek, Siew Young 1 ;
作者机构： 1.Univ Auckland, Sch Chem Sci, Food Sci, Auckland 1010, New Zealand
2.Chiba Univ, Grad Sch Hort, 648 Matsudo, Matsudo, Chiba 2718510, Japan
3.Hunan Acad Agr Sci, Hunan Agr Prod Proc Inst, Hunan Key Lab Fruits & Vegetables Storage Proc Qu, Changsha 410125, Peoples R China
4.Ctr Res Excellence Food Res, Riddet Inst, Palmerston North 4474, New Zealand
关键词： microencapsulation; spray-drying; Morinda citrifolia L.; maltodextrin; gum acacia; bioaccessibility; noni juice
期刊名称：FOODS （ 影响因子：4.35； 五年影响因子：4.957 ）
ISSN：
年卷期： 2020 年 9 卷 9 期
页码：
收录情况： SCI
摘要： Microencapsulation of fermented noni juice (FNJ) into powder format could protect bioactive compounds, reduce the unpleasant odour and improve the acceptability for consumers. Blends of maltodextrin (MD) and gum acacia (GA) were used to achieve spray-drying microencapsulation of noni juice at different blending ratios. The physicochemical properties including microstructure, moisture content, water activity, particle size, bulk/tapped density, dissolution rate, ATR-FTIR and the bioaccessibility of bioactive compounds in powders during in vitro digestion were examined. Results showed that blends produced with more GA produced microcapsules with lower moisture content, water activity and bulk/tapped density, but slower powder dissolution. The ATR-FTIR results suggested that there were no significant chemical interactions between the core material and carrier or between the MD and GA in the blend powders. The spray-dried noni juice powder produced using the blends with higher ratio of GA to MD showed a better protection on the bioactive compounds, resulting in a higher bioaccessibility of powders during in vitro digestion. This study provides insights into microencapsulation of noni juice using blends of MD and GA and examines the physicochemical properties and bioaccessibilities of spray-dried powders as affected by the selected carriers.
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